Stockholders' Equity - Summary of Pre-tax Intrinsic Values and Total Fair Value of Vested Restricted Stock (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Restricted stock units (RSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax intrinsic value of outstanding restricted stock	$ 549	$ 456	$ 294
Fair value of restricted stock vested	125	113	98
Performance stock units (PSU)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax intrinsic value of outstanding restricted stock	197	118	59
Fair value of restricted stock vested	$ 33	$ 17	$ 30